-- number
a = 3
print(a, "is ", type(a))

-- string
a = "a"
print(a, "is ", type(a))

-- string
a = "3"
print(a, "is ", type(a))

-- ???
a = 9 / "3"
print(a, "is ", type(a), '- "3" was converted to number')

-- boolean
a = 3 ~= 2
print(a, "is ", type(a))

a = "a"
b = 1

-- swap example
print("before swap", a, b)
a, b = b, a
print("after swap", a, b)



